288320022 has 48 divisors (see below), whose sum is σ = 659093760. Its totient is φ = 90837936.

The previous prime is 288319957. The next prime is 288320023. The reversal of 288320022 is 220023882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288320023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220623 + ... + 221925.

It is an arithmetic number, because the mean of its divisors is an integer number (13731120).

Almost surely, 2^288320022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288320022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329546880).

288320022 is an abundant number, since it is smaller than the sum of its proper divisors (370773738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

288320022 is a wasteful number, since it uses less digits than its factorization.

288320022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 288320022 is about 16979.9888692543. The cubic root of 288320022 is about 660.6299632535.

The spelling of 288320022 in words is "two hundred eighty-eight million, three hundred twenty thousand, twenty-two".